Nautical cylinder or tube



Filed June 13, 1929 2 Sheets-Sheet 1 INVENTOR fizz/ 49k 756M220 BY a I & ATTORNEY Nov. 18, 1930. A. TOSCANO 1,782,155

NAUTICAL CYLINDER 0R TUBE Filed June 15, 1929 2 Sheets-Sheet 2 ATTORNEY MFig. 4 is 50 Patented Nov. 18,1930

NAUTICAL jc innnn n QRTUBE Application filed mm 13, 1929. Serial No.870g497.

p This invention relates the'increasing of I the speed of any aerial or maritimeships-by means of -acy i er. 1 t w ch I nt d to call iljosoano Qylill-d-enr I I m This object is obtained by shutting ilp and sending back compactf-lnto a cylinder or tube the .air or. water displaced any propeller,

which otherwise would escape sideways and throughthe application of this invention is utilized as a pushing energy.- The air or water so shut up and canalized into a cylinder or tube, not only makes the propeller work in an undisturbed area,obut by way of escaping compact fi'om the-rear of'said cylinder or tube, makes such a stream that it pushes the ship ahead andcauses the said propeller to have two instead ofonemoving powers, to" wit: 1 a paddling 'ion' itS anterior side :and a pushing poweron its posterior side, thereby increasing the normalsp'eed-o'f anyship. s v. The shape and length of the cylinder'or tube my be variedaccordingto the results wished to be obtained, but the internal diameter of the cylinder or tube should always remain equal in size to the diameter of the propeller with its anterior extremities slight- 1y conical for a short tract, in order to avoid bration may be struck by the propeller.) 1 v I For further comprehension of'the invention, and :of theljobjects andf advantages thereof, reference will "be had to'jthe follow ing descriptionand accompanying drawings, and -'to-the appended claims fin'which the various novel features of the invention are more partieularlyset forth. In the accompanying drawings forming a material part of this disclosure c *Fig. l ijs a vertical longitudinalsectional v /f La ylind for u e cord ng o i nv n. Fig. '2 is a side" elevational' view :of an airship provided with c'y" this invention.

Fig. 3 is 'a fragmentary sectional Tview taken'on the line 03mg. 2. j V a fragmentary'seetiOnaI view taken on the line of Fig. 2.

ventionbutof V Fig. 11 isasimilar view vofa further modiby dotted lines that the cylinder or tube in its possible :viand 1-1er' hould be SO pQS ti a l riFig-vs'. i5 and 6. a heavier than lindr c rding dual meters 29.

5 is a front elevationa'l view of an aeroplane with. the invention -appl-i ed.- V Fig. .6 is a plan view of Fig. ;5.

' ig. 7 is a sideelevational view ofa boat witli'ftheinvention applied.

Fig. :8 is a side elevational View oat apoQrtilondof a submarine with theinvention a1): p e a v I 7 Fig. 9 is'a fragmentary-end .e'levational view of Fig. 7.

10 is a verticalsectional view of cylinder constructed according to this, in: modified form.

fication.

Fig. 12 is a fragmentary view to F 1 1 {showing a furtherj modification. he reference numeral .15 indicates gem erally a tubular member havingits front end slightly conical indicated bynumeral .16' for providing clearance for a propeller of sub stan'tia'lly' the same diameter as, the inside of said member. The-propeller is indicated V 17, and in applicationthe longitudinal axis '18 of the tubnlfil i fii b ier should coincide with the longitudinal Tails of the propeller. re'ariendofthe tubularmeinber should 1;- incidewith t'he vertical axis "of the propeller h eerin axi or. the

half lays within the tubular" member "indi- The u' lar member 15 is supported to the rear .of the propeller by struts 27.

1 7 air flying machine 28 has-been illustratedpreyided with These motors connect with,

propellers 30 and a pair of tubular 15 are supportedfito the rear of the propellersby istruts'fil. p 7 a V In F igsi 7' andr9, a ship 32 hasbe'n illustrated provided with a'propeller 33. A tubuwhich the vessel may travel.

lar member 'is supported to the rear of the propeller by struts 34. In Fig. 8 a submarine 35 has been indicated provided with a In Fig. 10, a modified form of c lindrical member 15 has been illustrated provided with aconical end 16. A' propeller 17' is shown engaged in the conical end of the tubular memberso that half of the propeller extends within the member indicated-bynumeral 19 and the other half is disposed outside of the member indicated by 20. The oppositeend of the tubular member is provided withven' tical rudders 36 andhorizontal rudders 37;

The vertical rudders36 are positioned internally in the tubular member while the horizontal rudders 37 are positioned outside, that is externally.

be used to operate these rudders. Thepurf pose of these rudders is to givemore agility Customary connections may to the ship because the stream of air or water eanalized into the-cylinder or tube'pushes against the said rudders. In aerial'navigation the cylinder or tube is; provlded with wlngs 1n the construction of aeroplanes irrespective of the location of the fuselage and in the construction of dirigibles and maritime ships the tubes or'oylinders are'attached to the dirigible' orship at the rear of the pro peller as shown in Figs. 2, 7 and 8. a

"The interior and. exterior of the nautical cylinder or tube must be free from anyprojections with theeXception of the strictly necessary ones in-order not to causecany resistance to the air or water in its course thus giving a strong and solid stability of directio'ntotheship. I 1

In the modifiedlform illustrated in'Fig. 11, the rudders 36 andf37 are shown provided with spindles 38 extending thru slots39 in the tubular member. The ends of the spindles are rotatively engaged in bearings 40;

These bearings are threadedlyengaged by screws, 41 arranged at right angles-to the spindles 38 and rotatively mounted in lugs 42 projecting from the sides of the cylinder The screws may bemanually rotated for moving the rudders forwards or rearwards so as to be difierently positionedrelative to the end of the tubular member 15. Such adjustments are verybeneficial for different types of machines. r

In Fig512 therudders36 and 37 are arranged externally on the tubular'member 15 and by means of' screws 41 it is possible to change their relative position with respect to the said tubular member.

Generally speaking, the return from motor propellers is from 50 to 70%. The medium or average return is of'the power transmitted to the'propeller. The return of a propeller provided with a tubular member according to this invention is substantially 100% of the power transmitted to it. Quite obviously this is of extreme advantage and the following example is given for purpose of illustration. 'In a cruiser in which' 20,000 E. P. engines are used, the return from those engines is 80%, that means a power return of 16,000 H.11 The, medium or average propeller return is 65% which gives the utilized power as 10,4;00 I-Il Should this cruiser use a tubular member 'accordingto this invention,the propeller return would be sub stantially 100% so'that theutilized power would be 16,000 H. Actual speed without the tubular member may beassumed 20 knots .an hour and itis known that speeds are in ratio with the cubic roots of the-powers and so the powers are between-themas the cubic roots of the speeds. Further, it is pointed out that Z V p Speed equals 23.2 knots approximately. Further 16% moreof the first speed with less consumption and load of fuel which-gives a still higher percentage of speed. y a While I have shown and described the preferred embodiment of my invention, itis tobe understood that I do not limit myself to the preciseconstruction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thusdescribed my invention, what I claimas new, and desire to secure by United States'Letters Patent is 1. In combination with a motor driven propellerga tubular member in line with the discharge of the propeller and arranged to canalize the discharge and prevent lateral eseapement, and horizontal and vertical rudders arranged in the discharge'of the tubular member, said rudders being arranged for adjustment. relative to the discharge end of the tubular member, spindles projecting from said rudders and extending thru slots in said tubular member, bearings supporting the ends of the spindles,and screws at right angles llOitllB spindles adjustably supporting the bearings'and rotatively mounted on the tubular member accomplish the adjustment of the rudders. v

2. In combination with a motor driven propellenatubular member in line with the the tubular member,

discharge of the propeller and arranged to canalize the discharge and prevent lateral escapement, and horizontal and vertical rudders arranged in the discharge of the tubular member, said rudders being arranged for adjustment relative to the discharge end of bearings pivotally supporting the rudders, and screws adjustably supporting the bearings and rotatively mounted on the tubular member accomplish the adjustment of the rudders.

In testimony whereof I have afilxed my 7 signature.

ARCANGELO TOSCANO. 

